Poller thinks it is broken after 1.64 update, but it isn't

Hello

Since the 1.64 update I get warnings that some devices have not been polled:

However, when I click on it it shows every single SNMP device as not having been polled since the update. The poller performance also looks like it is broken, showing a poller time of 0 since the update.

All devices are actually polling successfully.

Version info:

|Version|1.64 - Sun May 31 2020 16:48:00 GMT+0100|
|Database Schema|2020_04_06_001048_the_great_index_rename (165)|
|Web Server|nginx/1.10.3|
|PHP|7.4.6|
|Python|3.5.3|
|MySQL|10.1.44-MariaDB-0+deb9u1|
|Laravel|5.8.35|
|RRDtool|1.6.0|

Any ideas please?

please run ./validate.php

Hi Kevin

OK, slightly unexpected:

vendor/composer/installed.json seems to be invalid.
Just fully delete the vendor folder and reinstall it
./scripts/composer_wrapper.php install --no-dev

Thanks a lot - that cleared up the config validation and resolved the poller errors.